<?php
public static function redirect($uri,$code=302)
{
    $location = null;
    if (substr($uri,0,4)=='http') {
        $location = $uri;
    } else {
        $location = self::base(true);
        if (substr($uri,0,2) == '//') {
            $location .= '/' . ltrim($uri,'/');
        } elseif (substr($uri,0,1) == '/') {
            $location .= '/' . ltrim($uri,'/');
        }
    }

    $hs = headers_sent();
    if ($hs === false) {
        switch ($code) {
        case 301:
            header("301 Moved Permanently HTTP/1.1",true,$code);
            break;
        case 302:
            header("302 Found HTTP/1.1",true,$code);
            break;
        case 303:
            header("303 See Other HTTP/1.1",true,$code);
            break;
        case 304:
            header("304 Not Modified HTTP/1.1",true,$code);
            break;
        case 305:
            header("305 Use Proxy HTTP/1.1",true,$code);
            break;
        case 306:
            header("306 Not Used HTTP/1.1",true,$code);
            break;
        case 307:
            header("307 Temporary Redirect HTTP/1.1",true,$code);
            break;
        }
        header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
        header("Location: $location");
    }

    if (($hs==true) || ($code==302) || ($code==303)) {
        $cover_div_style = 'background-color: #ccc; height: 100%; left: 0px; position: absolute; top: 0px; width: 100%;';
        echo "<div style='$cover_div_style'>\n";
        $link_div_style = 'background-color: #fff; border: 2px solid #f00; left: 0px; margin: 5px; padding: 3px; ';
        $link_div_style.= 'position: absolute; text-align: center; top: 0px; width: 95%; z-index: 99;';
        echo "<div style='$link_div_style'>\n";
        echo "<p>Please See: <a href='$uri'>".htmlspecialchars($location)."</a></p>\n";
        echo "</div>\n</div>\n";
    }
    exit(0);
}
  ?>